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    DIY Davis prism directly on the mirror?
    From: Tony Oz
    Date: 2018 Nov 7, 11:00 -0800

    Hello.

    I'm restoring a Soviet clone of C&P sextant (from mid-sixties).

    I have an idea of glueing a ~6° (as was suggested by the inventor) prism directly on the horizon mirror. I think of doing it on the outer side of the mirror (on the other side from a clamp-spring), and the width of the prism would be approximatelly 1/3 of the transparent half. Of course the prism should be glued as parallel to the transparen|reflective boundary as technically possible. A friend of mine has an UV-hardening glue for glass - completely transparent when set.

    Are there any objections to doing that?

    Please comment.

    Regards,

    Tony

    60°N 30°E

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